Miami Valley , Whitewater Valley, and the I-71 corridor of Ohio/Indiana:
Flood Watch through Sunday morning...
Rain will become heaviest this evening and early tonight.Rainfall on the order of 2 to 3 inches will fall along the I-71 corridor. Higher amounts of 4 inches and locally higher will be common NW of the I-71 corridor. Any breaks in the overcast today could result in areas along and East of the I-71 corridor standing a chance to see strong to severe thunderstorms this evening and tonight along the cold front. These storms will enhance rainfall amounts as well as bring damaging winds, a brief tornado cannot be ruled out. Winds could gusts to 45 mph along the front and be slightly enhanced in any thunderstorms that develop. There is a very strong jet stream over head with winds gusting to 140 mph aloft. This means thunderstorms will not need much to tap into to become strong. Stay tuned for further details.
Some areas may experience very strong winds mainly on Saturday night and Sunday with the passage of this very strong cold front. Stay tuned for further details.
The following is the seven day forecast for the Dayton metro area and a 50 mile radius around it. Other metro areas like Columbus, Cincinnati, and Portsmouth are not included. For those areas please request a separate forecast. Thanks.
Today 12/21 - Cloudy, scattered rain showers early then a break around midday then steady rain by evening, some thunderstorms possible late. A few storms may be severe. Rain may be heavy at times especially late. Breezy. Winds S 5 to 15 mph, gusts to 25 mph. High 60. Chance of rain 100%. Rainfall around three quarters to one inch, higher amounts NW of I-71.
Tonight 12/21 - Cloudy, rain, with a few imbedded thunderstorms. Rain may be heavy at times. Breezy. Winds SW 15 to 25 mph, gusts to 30 mph late with any thunderstorms that develop. A few storms may be severe with damaging winds and isolated tornadoes along the front. Low 58. Chance of rain 100%. Rainfall around 1 to 2 inches, locally higher amounts possible NW of I-71.
Sunday 12/22 - Cloudy, scattered rain showers at times. Breezy. Winds SW 15 to 25 mph, gusts to 40 mph, becoming NW. High 58 falling into the 40s by pm. Chance of rain 70% early decreasing to 30% by pm. Rainfall around a tenth to a quarter of an inch.
Sun night 12/22 - Mostly cloudy, a chance of scattered rain/snow showers early. Winds W 5 to 15 mph. Low 33. Chance of snow 30%.
Monday 12/23 - Mostly cloudy, a chance of scattered snow showers by pm. Winds NW 5 to 15 mph. High 33 slowly falling into the 20s by pm. Chance of snow 30%.
Mon night 12/23 - Mostly cloudy, a chance of scattered snow showers. Low 20. Chance of snow 30%.
Tuesday 12/24 - Mostly cloudy, becoming partly cloudy. High 25.
Tues night 12/24 - Mostly clear. Low 17.
Christmas Day 12/25 - Partly cloudy. High 35.
Christmas Night 12/25 - Partly cloudy. Low 24.
Thursday 12/26 - Mostly cloudy, a slight chance of scattered snow showers. High 32. Chance of snow 20%.
Thur night 12/26 - Partly cloudy. Low 22.
Friday 12/27 - Mostly sunny. High 27.
Fri night 12/27 - Mostly clear. Low 19.